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IAUC 8183: S/2003 (130) 1; 2003hd; C/2003 E1; C/2002 Y1; Corr

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IAUC number

                                                  Circular No. 8183
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

S/2003 (130) 1
     W. J. Merline, Southwest Research Institute (SwRI); P. M.
Tamblyn, Binary Astronomy, Golden, CO, and SwRI; C. Dumas, Jet
Propulsion Laboratory; L. M. Close, University of Arizona; C. R.
Chapman, SwRI; and F. Menard, Observatoire de Grenoble, report the
discovery on Aug. 15.6 UT of a satellite of minor planet (130)
Elektra from K'- and H-band imaging with the 10-m Keck II Telescope
(+ NIRC2/AO adaptive optics system) on Mauna Kea.  On Aug. 15.6417,
the satellite was at separation 0".72 (projected separation 1170
km) and position angle 70 deg.  The satellite was confirmed by the
same team, also at Keck II, on Aug. 17.6.  The K'-band brightness
difference is about 8.5 mag, giving an estimated diameter of the
satellite of about 4 km.

SUPERNOVA 2003hd IN MCG -04-5-10
     M. Hamuy, N. Morrell, and J. Thomas-Osip, Carnegie
Observatories, report that a spectrum (range 360-900 nm) of SN
2003hd (cf. IAUC 8179), obtained on Aug. 15.28 UT with the Las
Campanas Clay 6.5-m telescope (+ LDSS-2), shows it to be a young
type-II supernova with a blue continuum having incipient H_alpha
and H_beta broad P-Cyg lines.

COMET C/2003 E1 (NEAT)
     Orbital elements from MPC 49276:

                    Epoch = 2004 Feb.  5.0 TT
     T = 2004 Feb. 13.6332 TT         Peri. = 103.8634
     e = 0.763499                     Node  = 137.0688  2000.0
     q = 3.245045 AU                  Incl. =  33.5375
       a = 13.721077 AU    n = 0.0193920    P =  50.83 years

     Total visual magnitude estimates:  July 3.74 UT, 9.0 (D. A. J.
Seargent, The Entrance, N.S.W., 25x100 binoculars); 27.68, 10.6 (M.
Mattiazzo, Wallaroo, South Australia, 25x100 binoculars).

     On IAUC 8182, 'Comet C/2003 H1 (LINEAR)', line 1, FOR
parabolic  READ  nearly-parabolic

                      (C) Copyright 2003 CBAT
2003 August 17                 (8183)            Daniel W. E. Green

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